<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        class Person {
            constructor(name, age, sex) {
                this.name = name;
                this.age = age;
                this.sex = sex;
            }

            travel() {
                console.log('go to other city')
            }
        }

        class P extends Person {
            constructor(name, age, sex, car) {
                super(name, age, sex);
                this.car = car
            }

            lang() {
                console.log(`${this.name} loves ride his ${this.car}`)
            }
        }
    </script>
</body>

</html>